-LRB- CNN -RRB- -- Two armed groups raped more than 150 women in a village in the volatile North Kivu province in the Democratic Republic of Congo in a four-day spree , a United Nations official said Monday .

The attacks happened last month and members of a U.N. human rights team said it confirmed the attacks .

`` Victims of the attack , which occurred on 30 July in the village of Bunangiri are receiving medical treatment and have also been provided psycho-social care , '' the U.N. officials said in a statement .

In the statement U.N. officials said the culprits were insurgents loyal to the Democratic Forces for the Liberation of Rwanda . The ethnic Hutu militia has been linked the genocide in Rwanda in 1994 and has been been battling Congo government forces recently .

Aid group International Medical Corps said it is treating the women and had more details about the rape spree that they say went on for days .

`` The incident began when armed men entered a local village , urging the population not to flee by convincing them that they were only there to find food . However , after dark another group of armed men reportedly arrived , and over the next four days the armed actors raped women throughout the area , '' the organization said in a statement .

The women were attacked by two to six armed men and sometimes in front of their husbands and children , the medical organization said .

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Rape spree lasts four days , group says

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U.N. says militants loyal to Hutu militia group committed the attacks

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In some cases , the women are assaulted in front of children